Issue #3163486 by Daniel Kulbe: Exposed filter with the operator "between" not...

Issue #3163486 by Daniel Kulbe: Exposed filter with the operator "between" not moving to secondary options block

src/Plugin/better_exposed_filters/filter/DatePickers.php

@@ -84,6 +84,7 @@ class DatePickers extends FilterWidgetBase {
        */
       $fields = ['min', 'max', 'value'];
       if (count(array_intersect($fields, array_keys($form[$field_id])))) {
+        $form[$field_id]['#type'] = 'container';
         foreach ($fields as $field) {
           if (isset($form[$field_id][$field])) {
             $form[$field_id][$field]['#attributes']['class'][] = 'bef-datepicker';